I have this sample code from my default function of the controller class.
$this->data['heading_title']= $this->language->get('heading_title');
$this->data['text_enabled'] = $this->language->get('text_enabled');
when i run the code it just keeps on giving me this error
Indirect modification of overloaded property ControllerModuleHelloworld::$data has no effect in /the/path/of/the/file
When looking at some of the previous answers here, it seems that mostly is about calling by reference. but whenever I try it using this code
&_set( $this->data['heading_title'], $this->language->get('heading_title') );
it returns this error:
Parse error: syntax error, unexpected '&' in /the/path/of/the/file.php on line 23
Can you please assist me in order to know what's wrong and how to fix the bug.